Built-in generator for carrier roller

Abstract

The utility model belongs to the technical field of carrier rollers, and particularly relates to a carrier roller built-in generator. A built-in generator for a carrier roller comprises a casing and a rotor shaft, the casing is fixedly connected to a carrier roller shaft through a key, the rotor shaft is connected with the casing and can rotate, a stator is fixed in the casing, a rotor is fixed on the rotor shaft, one end of the rotor shaft is exposed out of the casing, a coupling assembly is further arranged on the rotor shaft exposed out of the casing, and the coupling assembly is connected with the rotor shaft. The coupling assembly comprises a fixing assembly connected with a rotor shaft, a plurality of containing assemblies are arranged on the fixing assembly, the coupling assembly further comprises magnetic assemblies installed in the containing assemblies, and the magnetic assemblies are used for being connected with a carrier roller drum. According to the utility model, the coupling assembly is improved, so that the coaxiality and stability between the built-in generator and the carrier roller are realized, and the problem of connection caused by end face jumping of the bearing seat is solved at the same time.

Description

Technical Field

[0001] This utility model belongs to the field of idler roller technology, and specifically relates to an idler roller with a built-in generator. Background Technology

[0002] Currently, the bearings of idlers used in mining are prone to damage during operation, which cannot be detected in time by maintenance personnel. This can lead to increased idler temperature or sparks generated by friction, resulting in accidents. Therefore, it is necessary to install corresponding detection devices.

[0003] People have considered installing a generator inside the idler roller to provide power to the detection device inside the roller, thereby enabling the detection of the idler roller's operating status. How to drive the generator to work? In the existing technology, a coupling is generally used to connect the roller of the idler roller and the rotor of the generator together. In actual operation, the end face of the idler roller connected to the coupling is welded to the roller. The dimensional accuracy of the welded parts cannot be guaranteed after deformation. Moreover, the coupling is a rigid connection with high precision requirements, which affects the assembly of the product, resulting in a high scrap rate and causing production costs to rise continuously. Summary of the Invention

[0004] In view of the problems existing in the prior art, this utility model improves the coupling assembly, which solves the coaxiality and stability between the built-in generator and the idler roller, and also overcomes the connection problem of the bearing seat end face runout.

[0005] The technical solution of this utility model is as follows:

[0006] An internal generator for an idler roller includes a housing fixedly connected to the idler roller shaft by a key, and a rotor shaft connected to and rotatable from the housing. A stator is fixed inside the housing, and the rotor is fixed on the rotor shaft. The rotor shaft has one end protruding from the housing, and a coupling assembly is provided on the exposed rotor shaft. The coupling assembly includes a fixing component connected to the rotor shaft, a plurality of receiving components on the fixing component, and a magnetic component installed within the receiving components. The magnetic component is used to connect to the idler roller.

[0007] Furthermore, the fixing component is a ring with an opening, and locking holes are provided on both sides of the opening of the ring. Fasteners are connected in the locking holes. The receiving component is a number of through holes opened on the end face of the ring, and magnetic components are embedded in the through holes.

[0008] Furthermore, the fixing component includes a fixing sleeve connected to the rotor shaft, a fixing plate on the fixing sleeve, a plurality of connecting holes on the fixing plate, and a spherical recess on the surface of the fixing plate near the housing, the spherical recess being coaxial with the connecting holes. The receiving component includes a receiving housing, a connecting rod at the tail end of the receiving housing, and a connecting ball, the connecting rod being fixedly connected to the connecting ball.

[0009] Furthermore, the housing includes a bushing fitted onto the idler roller shaft. A support ring is provided on the outer surface of the bushing near the rear end of the bushing. An outer shell is fixed to the outer end of the support ring. A receiving cavity is provided on the side of the support ring near the rear end of the bushing. The receiving cavity is used to install the controller. A wire groove is provided on the inner wall of the bushing along the axial direction, and the wire groove extends along the surface of the support ring to the receiving cavity. A rear cover is installed at the rear end of the outer shell, and a front cover is installed at the front end of the outer shell.

[0010] Furthermore, the support ring has a first mounting groove on the side away from the rear end of the bushing, and the first mounting groove is located inside the receiving cavity.

[0011] Furthermore, the front cover includes a front cover body, a thickened portion at the center of the front cover body, a through hole at the center of the thickened portion, a second mounting groove around the through hole on the inner surface of the thickened portion, the end face of the thickened portion being higher than the surface of the front cover body, and an annular boss on the inner surface of the front cover body, forming a positioning groove between the outer surface of the thickened portion and the annular boss.

[0012] Furthermore, the outer diameter of the annular boss is smaller than the inner diameter of the outer shell.

[0013] Furthermore, the inner wall of the outer shell is provided with a limiting boss near the support ring.

[0014] Furthermore, the rotor shaft is sleeved on the bushing, and the surface of the rotor shaft is provided with a first positioning step and a second positioning step. A first bearing is provided on the left side of the first positioning step, and a second bearing is provided on the right side of the second positioning step. The rotor is mounted on the rotor bushing and located between the first positioning step and the second positioning step.

[0015] In summary, this utility model has the following beneficial effects:

[0016] This invention improves the built-in generator used in idler rollers. Specifically, it improves the connection between the generator's rotor shaft and the idler roller's cylinder. The generator is fixed to the rotor shaft by a fixed component and connected to the idler roller's cylinder by a magnetic component. When the idler roller rotates, the magnetic component drives the rotor shaft to rotate, enabling the built-in generator to generate electricity to provide power to the fault detection component. At the same time, the magnetic component can move within the housing component. When there is axial wobble, the magnetic component can effectively overcome the influence of wobble, overcoming the problem of excessively high processing precision requirements of hard connections. Furthermore, the connection between the magnetic component and the idler roller is flexible, resulting in smoother operation and reduced noise. Attached Figure Description

[0017] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0018] Figure 2 This is a cross-sectional schematic diagram of Embodiment 1 of the present invention;

[0019] Figure 3 This is a partial half-sectional view of Embodiment 2 of the present invention;

[0020] Figure 4 This is a three-dimensional schematic diagram of the casing of this utility model;

[0021] Figure 5 This is a half-sectional perspective view of the casing of this utility model;

[0022] Figure 6 This is a half-sectional view of the built-in motor of this utility model;

[0023] 1 in the figure is the casing.

[0024] 10 is the bushing, 11 is the support ring, 12 is the outer shell, 13 is the receiving cavity, 100 is the wire guide groove, 14 is the rear cover, and 15 is the front cover.

[0025] 101 is the first mounting slot.

[0026] 150 is the front cover, 151 is the thickened part, 1510 is the through hole, 152 is the second mounting groove, 153 is the annular boss, 154 is the positioning groove, and 120 is the limiting boss.

[0027] 2 is the rotor shaft, 201 is the first positioning step, 202 is the second positioning step, 21 is the first bearing, 22 is the second bearing, 3 is the stator, and 4 is the rotor.

[0028] 5 is the coupling assembly, 50 is the fixing assembly, 501 is the housing assembly, and 52 is the magnetic assembly.

[0029] 502 is the ring body, 5020 is the locking hole, and 5010 is the through hole.

[0030] 503 is the fixing sleeve, 504 is the fixing plate, 5040 is the connecting hole, 5041 is the spherical recess, 5011 is the housing, 5012 is the connecting rod, and 5013 is the connecting ball. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0032] It should be noted that when a component is referred to as being "set on" or "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "fixed to" another component, or "fixedly connected" to another component, the fixing method can be detachable or non-detachable. When a component is considered to be "connected" or "rotatably connected" to another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions used are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] In this invention, terms such as "first," "second," and "third" are used not to represent specific quantities or orders, but merely to distinguish names.

[0035] Example 1

[0036] See Figure 1 and Figure 2 As shown, the built-in generator for the idler roller includes a housing 1, which is fixedly connected to the idler roller shaft by a key. It also includes a rotor shaft 2 connected to the housing and rotatable. A stator 3 is fixed inside the housing, and a rotor 4 is fixed on the rotor shaft. One end of the rotor shaft 2 protrudes from the housing 1. A coupling assembly 5 is also provided on the rotor shaft 2 protruding from the housing. The coupling assembly 5 includes a fixing assembly 50 connected to the rotor shaft. The fixing assembly 50 is provided with a plurality of receiving assemblies 501. It also includes a magnetic assembly 52 installed in the receiving assembly. The magnetic assembly 52 is used to connect with the idler roller.

[0037] This invention improves the built-in generator used in idler rollers. Specifically, it improves the connection between the generator's rotor shaft and the idler roller's cylinder. The generator is fixed to the rotor shaft by a fixed component and connected to the idler roller's cylinder by a magnetic component. When the idler roller rotates, the magnetic component drives the rotor shaft to rotate, enabling the built-in generator to generate electricity to provide power to the fault detection component. At the same time, the magnetic component can move within the housing component. When there is axial wobble, the magnetic component can effectively overcome the influence of wobble, overcoming the problem of excessively high processing precision requirements of hard connections. Furthermore, the connection between the magnetic component and the idler roller is flexible, resulting in smoother operation and reduced noise.

[0038] In this embodiment, the fixing component 50 is a ring 502 with an opening. Locking holes 5020 are provided on both sides of the opening of the ring. Fasteners are connected in the locking holes. The ring is tightened to the rotor shaft by tightening the fasteners. The receiving component 501 is a plurality of through holes 5010 opened on the end face of the ring. Magnetic components 52 are embedded in the through holes. The magnetic components are permanent magnets that match the shape of the through holes. There is a clearance fit between the magnetic components and the receiving component. The magnetic components can move along the length direction in the receiving component. When there is axial wobble at the end face of the connection between the roller and the magnetic component, it can be overcome by the movement of the magnetic components, thereby avoiding the requirements of hard connection on the processing accuracy of each component and reducing manufacturing costs.

[0039] Example 2

[0040] Unlike Embodiment 1, this embodiment improves the structure of the coupling assembly; see [link to Embodiment 1]. Figure 3 As shown, the fixing component 50 includes a fixing sleeve 503 connected to the rotor shaft. The fixing sleeve 503 is provided with a fixing plate 504. The fixing plate 504 is provided with a plurality of connecting holes 5040. A spherical recess 5041 is provided on the surface of the fixing plate near the housing. The spherical recess is coaxial with the connecting holes. The receiving component 501 includes a receiving housing 5011. The tail end of the receiving housing 5011 is provided with a connecting rod 5012. It also includes a connecting ball 5013. The connecting rod 5012 is fixedly connected to the connecting ball 5013.

[0041] In this embodiment, the coupling assembly has been improved. This embodiment designs an assembled coupling assembly, which breaks down the fixed components into parts, thereby simplifying the structural design of each part and reducing manufacturing costs; moreover, the structural design is reasonable and convenient for assembly.

[0042] The structure of the housing is described below. The housing structure can be used in both of the above embodiments, as detailed below: See Figures 4 to 6 As shown, the housing 1 includes a bushing 10 fitted onto the idler roller shaft. A support ring 11 is provided on the outer surface of the bushing 10 near the rear end of the bushing. An outer shell 12 is fixed to the outer end of the support ring 11. A receiving cavity 13 is provided on the side of the support ring 11 near the rear end of the bushing. The receiving cavity is used to install the controller. A wire groove 100 is provided on the inner wall of the bushing 10 along the axial direction. The wire groove 100 extends along the surface of the support ring to the receiving cavity 13. A rear cover 14 is installed at the rear end of the outer shell 12, and a front cover 15 is installed at the front end of the outer shell 12.

[0043] The housing of this utility model is connected to the idler roller via a bushing. Specifically, the inner wall of the bushing is provided with a keyway, and the bushing is fixedly connected to the idler roller by a key, so that the housing and the idler roller shaft are relatively fixed and there is no relative rotation between them. Furthermore, through the provided wire passage, the wire passage extends from one end of the inner wall of the bushing to the other end and continues to extend on the surface of the support ring, thereby realizing communication with the receiving cavity. The provided wire passage provides a path for the connection between the rotor assembly and the controller, which facilitates the arrangement of the linear speed, thus making it possible to set up a generator inside the idler roller to provide power to the detection equipment. Moreover, the housing of this utility model has a simple structure, is easy to assemble, and has low manufacturing cost.

[0044] The support ring 10 has a first mounting groove 101 on the side away from the rear end of the bushing. The first mounting groove is located inside the receiving cavity and is used to install the bearing to support the rotor assembly, so that the rotor assembly can rotate with the idler roller.

[0045] The front cover 15 includes a front cover body 150. A thickened portion 151 is provided at the center of the front cover body 150. A through hole 1510 is provided at the center of the thickened portion 151. A second mounting groove 152 is provided around the through hole on the inner surface of the thickened portion 151. The end face of the thickened portion 151 is higher than the surface of the front cover body 150. An annular boss 153 is also provided on the inner surface of the front cover body 150. A positioning groove 154 is formed between the outer surface of the thickened portion 151 and the annular boss. The thickened portion enhances the structural strength of the front cover and also provides a reliable foundation for the second mounting groove. The second mounting groove is used for the installation of bearings, so that there are two reliable supports between the rotor assembly and the housing, thereby ensuring that the rotor assembly can rotate stably. The annular boss is used for positioning with the housing, and the positioning groove is used for positioning the stator.

[0046] The outer diameter of the annular boss 153 is smaller than the inner diameter of the outer shell 12. The annular boss and the outer shell form a positioning system to ensure the positioning accuracy between them.

[0047] The length of the outer casing 12 is greater than the length of the bushing 10, ensuring sufficient space inside the outer casing for easy stator installation.

[0048] The inner wall of the outer shell 12 is provided with a limiting boss 120 near the support ring. The limiting boss is used to limit and position the other end of the stator. On the one hand, it facilitates the installation of the stator, and on the other hand, it limits the two ends of the stator to prevent axial movement.

[0049] In summary, this utility model has the following beneficial effects:

[0050] This invention improves the built-in generator used in idler rollers. Specifically, it improves the connection between the generator's rotor shaft and the idler roller's cylinder. The generator is fixed to the rotor shaft by a fixed component and connected to the idler roller's cylinder by a magnetic component. When the idler roller rotates, the magnetic component drives the rotor shaft to rotate, enabling the built-in generator to generate electricity to provide power to the fault detection component. At the same time, the magnetic component can move within the housing component. When there is axial wobble, the magnetic component can effectively overcome the influence of wobble, overcoming the problem of excessively high processing precision requirements of hard connections. Furthermore, the connection between the magnetic component and the idler roller is flexible, resulting in smoother operation and reduced noise.

[0051] Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A built-in generator for an idler roller, comprising a housing fixedly connected to an idler roller shaft by a key, and a rotor shaft connected to and rotatable from the housing, a stator fixed inside the housing, and a rotor fixed to the rotor shaft, characterized in that: One end of the rotor shaft protrudes from the housing. A coupling assembly is also provided on the rotor shaft protruding from the housing. The coupling assembly includes a fixing component connected to the rotor shaft. The fixing component is provided with several receiving components and also includes a magnetic component installed in the receiving components. The magnetic component is used to connect with the idler roller.

2. The built-in generator for idler rollers according to claim 1, characterized in that: The fixing component is a ring with an opening. Locking holes are provided on both sides of the opening of the ring. Fasteners are connected in the locking holes. The receiving component consists of several through holes on the end face of the ring. Magnetic components are embedded in the through holes.

3. The built-in generator for idler rollers according to claim 1, characterized in that: The fixing assembly includes a fixing sleeve connected to the rotor shaft, a fixing plate on the fixing sleeve, a plurality of connecting holes on the fixing plate, and a spherical recess on the surface of the fixing plate near the housing, the spherical recess being coaxial with the connecting holes. The receiving assembly includes a receiving housing, a connecting rod at the tail end of the receiving housing, and a connecting ball, the connecting rod being fixedly connected to the connecting ball.

4. The built-in generator for idler rollers according to claim 1, characterized in that: The housing includes a bushing fitted onto the idler roller shaft. A support ring is provided on the outer surface of the bushing near the rear end of the bushing. An outer shell is fixed to the outer end of the support ring. A receiving cavity is provided on the side of the support ring near the rear end of the bushing. The receiving cavity is used to install a controller. A wire groove is provided on the inner wall of the bushing along the axial direction. The wire groove extends along the surface of the support ring to the receiving cavity. A rear cover is installed at the rear end of the outer shell, and a front cover is installed at the front end of the outer shell.

5. The built-in generator for idler rollers according to claim 4, characterized in that: The support ring has a first mounting groove on the side away from the rear end of the bushing, and the first mounting groove is located inside the receiving cavity.

6. The built-in generator for idler rollers according to claim 4, characterized in that: The front cover includes a front cover body, a thickened part at the center of the front cover body, a through hole at the center of the thickened part, a second mounting groove around the through hole on the inner surface of the thickened part, the end face of the thickened part being higher than the surface of the front cover body, and an annular boss on the inner surface of the front cover body, forming a positioning groove between the outer surface of the thickened part and the annular boss.

7. The built-in generator for idler rollers according to claim 6, characterized in that: The outer diameter of the annular boss is smaller than the inner diameter of the outer shell.

8. The built-in generator for idler rollers according to claim 4, characterized in that: The inner wall of the outer shell is provided with a limiting boss near the support ring.

9. The built-in generator for idler rollers according to claim 4, characterized in that: The rotor shaft is sleeved on the bushing. The surface of the rotor shaft is provided with a first positioning step and a second positioning step. A first bearing is provided on the left side of the first positioning step and a second bearing is provided on the right side of the second positioning step. The rotor is mounted on the rotor bushing and located between the first positioning step and the second positioning step.

Images